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-rw-r--r--app/core/gimpunit.c305
1 files changed, 305 insertions, 0 deletions
diff --git a/app/core/gimpunit.c b/app/core/gimpunit.c
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+++ b/app/core/gimpunit.c
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+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1999 Spencer Kimball and Peter Mattis
+ *
+ * gimpunit.c
+ * Copyright (C) 1999-2000 Michael Natterer <mitch@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/* This file contains the definition of the size unit objects. The
+ * factor of the units is relative to inches (which have a factor of 1).
+ */
+
+#include "config.h"
+
+#include <gio/gio.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimp.h"
+#include "gimpunit.h"
+
+#include "gimp-intl.h"
+
+
+/* internal structures */
+
+typedef struct
+{
+ gboolean delete_on_exit;
+ gdouble factor;
+ gint digits;
+ gchar *identifier;
+ gchar *symbol;
+ gchar *abbreviation;
+ gchar *singular;
+ gchar *plural;
+} GimpUnitDef;
+
+
+/* these are the built-in units
+ */
+static const GimpUnitDef gimp_unit_defs[GIMP_UNIT_END] =
+{
+ /* pseudo unit */
+ { FALSE, 0.0, 0, "pixels", "px", "px",
+ NC_("unit-singular", "pixel"), NC_("unit-plural", "pixels") },
+
+ /* standard units */
+ { FALSE, 1.0, 2, "inches", "''", "in",
+ NC_("unit-singular", "inch"), NC_("unit-plural", "inches") },
+
+ { FALSE, 25.4, 1, "millimeters", "mm", "mm",
+ NC_("unit-singular", "millimeter"), NC_("unit-plural", "millimeters") },
+
+ /* professional units */
+ { FALSE, 72.0, 0, "points", "pt", "pt",
+ NC_("unit-singular", "point"), NC_("unit-plural", "points") },
+
+ { FALSE, 6.0, 1, "picas", "pc", "pc",
+ NC_("unit-singular", "pica"), NC_("unit-plural", "picas") }
+};
+
+/* not a unit at all but kept here to have the strings in one place
+ */
+static const GimpUnitDef gimp_unit_percent =
+{
+ FALSE, 0.0, 0, "percent", "%", "%",
+ NC_("singular", "percent"), NC_("plural", "percent")
+};
+
+
+/* private functions */
+
+static GimpUnitDef *
+_gimp_unit_get_user_unit (Gimp *gimp,
+ GimpUnit unit)
+{
+ return g_list_nth_data (gimp->user_units, unit - GIMP_UNIT_END);
+}
+
+
+/* public functions */
+
+gint
+_gimp_unit_get_number_of_units (Gimp *gimp)
+{
+ return GIMP_UNIT_END + gimp->n_user_units;
+}
+
+gint
+_gimp_unit_get_number_of_built_in_units (Gimp *gimp)
+{
+ return GIMP_UNIT_END;
+}
+
+GimpUnit
+_gimp_unit_new (Gimp *gimp,
+ const gchar *identifier,
+ gdouble factor,
+ gint digits,
+ const gchar *symbol,
+ const gchar *abbreviation,
+ const gchar *singular,
+ const gchar *plural)
+{
+ GimpUnitDef *user_unit = g_slice_new0 (GimpUnitDef);
+
+ user_unit->delete_on_exit = TRUE;
+ user_unit->factor = factor;
+ user_unit->digits = digits;
+ user_unit->identifier = g_strdup (identifier);
+ user_unit->symbol = g_strdup (symbol);
+ user_unit->abbreviation = g_strdup (abbreviation);
+ user_unit->singular = g_strdup (singular);
+ user_unit->plural = g_strdup (plural);
+
+ gimp->user_units = g_list_append (gimp->user_units, user_unit);
+ gimp->n_user_units++;
+
+ return GIMP_UNIT_END + gimp->n_user_units - 1;
+}
+
+gboolean
+_gimp_unit_get_deletion_flag (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail (unit < (GIMP_UNIT_END + gimp->n_user_units), FALSE);
+
+ if (unit < GIMP_UNIT_END)
+ return FALSE;
+
+ return _gimp_unit_get_user_unit (gimp, unit)->delete_on_exit;
+}
+
+void
+_gimp_unit_set_deletion_flag (Gimp *gimp,
+ GimpUnit unit,
+ gboolean deletion_flag)
+{
+ g_return_if_fail ((unit >= GIMP_UNIT_END) &&
+ (unit < (GIMP_UNIT_END + gimp->n_user_units)));
+
+ _gimp_unit_get_user_unit (gimp, unit)->delete_on_exit =
+ deletion_flag ? TRUE : FALSE;
+}
+
+gdouble
+_gimp_unit_get_factor (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail (unit < (GIMP_UNIT_END + gimp->n_user_units) ||
+ (unit == GIMP_UNIT_PERCENT),
+ gimp_unit_defs[GIMP_UNIT_INCH].factor);
+
+ if (unit < GIMP_UNIT_END)
+ return gimp_unit_defs[unit].factor;
+
+ if (unit == GIMP_UNIT_PERCENT)
+ return gimp_unit_percent.factor;
+
+ return _gimp_unit_get_user_unit (gimp, unit)->factor;
+}
+
+gint
+_gimp_unit_get_digits (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail (unit < (GIMP_UNIT_END + gimp->n_user_units) ||
+ (unit == GIMP_UNIT_PERCENT),
+ gimp_unit_defs[GIMP_UNIT_INCH].digits);
+
+ if (unit < GIMP_UNIT_END)
+ return gimp_unit_defs[unit].digits;
+
+ if (unit == GIMP_UNIT_PERCENT)
+ return gimp_unit_percent.digits;
+
+ return _gimp_unit_get_user_unit (gimp, unit)->digits;
+}
+
+const gchar *
+_gimp_unit_get_identifier (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail ((unit < (GIMP_UNIT_END + gimp->n_user_units)) ||
+ (unit == GIMP_UNIT_PERCENT),
+ gimp_unit_defs[GIMP_UNIT_INCH].identifier);
+
+ if (unit < GIMP_UNIT_END)
+ return gimp_unit_defs[unit].identifier;
+
+ if (unit == GIMP_UNIT_PERCENT)
+ return gimp_unit_percent.identifier;
+
+ return _gimp_unit_get_user_unit (gimp, unit)->identifier;
+}
+
+const gchar *
+_gimp_unit_get_symbol (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail ((unit < (GIMP_UNIT_END + gimp->n_user_units)) ||
+ (unit == GIMP_UNIT_PERCENT),
+ gimp_unit_defs[GIMP_UNIT_INCH].symbol);
+
+ if (unit < GIMP_UNIT_END)
+ return gimp_unit_defs[unit].symbol;
+
+ if (unit == GIMP_UNIT_PERCENT)
+ return gimp_unit_percent.symbol;
+
+ return _gimp_unit_get_user_unit (gimp, unit)->symbol;
+}
+
+const gchar *
+_gimp_unit_get_abbreviation (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail ((unit < (GIMP_UNIT_END + gimp->n_user_units)) ||
+ (unit == GIMP_UNIT_PERCENT),
+ gimp_unit_defs[GIMP_UNIT_INCH].abbreviation);
+
+ if (unit < GIMP_UNIT_END)
+ return gimp_unit_defs[unit].abbreviation;
+
+ if (unit == GIMP_UNIT_PERCENT)
+ return gimp_unit_percent.abbreviation;
+
+ return _gimp_unit_get_user_unit (gimp, unit)->abbreviation;
+}
+
+const gchar *
+_gimp_unit_get_singular (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail ((unit < (GIMP_UNIT_END + gimp->n_user_units)) ||
+ (unit == GIMP_UNIT_PERCENT),
+ gimp_unit_defs[GIMP_UNIT_INCH].singular);
+
+ if (unit < GIMP_UNIT_END)
+ return g_dpgettext2 (NULL, "unit-singular", gimp_unit_defs[unit].singular);
+
+ if (unit == GIMP_UNIT_PERCENT)
+ return g_dpgettext2 (NULL, "unit-singular", gimp_unit_percent.singular);
+
+ return _gimp_unit_get_user_unit (gimp, unit)->singular;
+}
+
+const gchar *
+_gimp_unit_get_plural (Gimp *gimp,
+ GimpUnit unit)
+{
+ g_return_val_if_fail ((unit < (GIMP_UNIT_END + gimp->n_user_units)) ||
+ (unit == GIMP_UNIT_PERCENT),
+ gimp_unit_defs[GIMP_UNIT_INCH].plural);
+
+ if (unit < GIMP_UNIT_END)
+ return g_dpgettext2 (NULL, "unit-plural", gimp_unit_defs[unit].plural);
+
+ if (unit == GIMP_UNIT_PERCENT)
+ return g_dpgettext2 (NULL, "unit-plural", gimp_unit_percent.plural);
+
+ return _gimp_unit_get_user_unit (gimp, unit)->plural;
+}
+
+
+/* The sole purpose of this function is to release the allocated
+ * memory. It must only be used from gimp_units_exit().
+ */
+void
+gimp_user_units_free (Gimp *gimp)
+{
+ GList *list;
+
+ for (list = gimp->user_units; list; list = g_list_next (list))
+ {
+ GimpUnitDef *user_unit = list->data;
+
+ g_free (user_unit->identifier);
+ g_free (user_unit->symbol);
+ g_free (user_unit->abbreviation);
+ g_free (user_unit->singular);
+ g_free (user_unit->plural);
+
+ g_slice_free (GimpUnitDef, user_unit);
+ }
+
+ g_list_free (gimp->user_units);
+ gimp->user_units = NULL;
+ gimp->n_user_units = 0;
+}
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